Yamada
Yamada NDP-50BFT-NPT-NEW — 2" Cast Iron Diaphragm Pump, PTFE Diaphragm
Yamada NDP-50BFT-NPT-NEW — 2" Cast Iron Diaphragm Pump, PTFE Diaphragm
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This NDP-50BFT-NPT-NEW is a 2" NDP-50 air-operated diaphragm pump in cast iron, rated to 164 GPM. It passes solids to 5/16" (8 mm) and handles fluid to 212°F (100°C).
A cast iron wetted path suits mining, foundry and heavy-process service where the pump takes physical punishment and the fluid is not corrosive. PTFE diaphragms and balls give near-universal chemical resistance, covering solvents, concentrated acids and oxidizers that destroy rubber elastomers, at the cost of a slightly lower displacement per stroke. Ball check valves are the right choice for flooded-suction installations.
Supplied with NPT threaded connections. It self-primes, tolerates running dry, and stalls harmlessly against a closed valve, so it suits batching and intermittent transfer where a centrifugal pump would be a poor fit.
Ordered online, shipped from Texas, priced well and backed by US support before and after the sale. Send us your application details if you want a second opinion on materials.
| Brand | Yamada |
|---|---|
| Model / MPN | NDP-50BFT-NPT-NEW |
| Yamada item no. | 852839 |
| Pump type | Air-operated double-diaphragm (AODD) |
| Series | NDP-50 |
| Port size | 2" |
| Maximum flow | 164 GPM |
| Air supply pressure | 20-100 PSI |
| Maximum fluid discharge pressure | Same as max air supply (1:1 pump) |
| Maximum solids | 5/16" (8 mm) |
| Displacement per cycle | Rubber 1.12 gal (4.25 L) |
| Maximum dry suction lift | 19 ft |
| Maximum fluid temperature | 212°F (100°C) |
| Check valve type | Ball valve |
| Body / wetted materials | Cast Iron (FC) |
| Diaphragm material | PTFE |
| Ball material | PTFE |
| Air motor | Standard |
| Air inlet | 3/4” Female NPT |
| Air exhaust | 1” Female NPT |
| Options | NPT connection; |
| Repair kit | K50-MT |
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